CN207540911U - A kind of raw bamboo rift grain direction shear test device - Google Patents
A kind of raw bamboo rift grain direction shear test device Download PDFInfo
- Publication number
- CN207540911U CN207540911U CN201721772123.2U CN201721772123U CN207540911U CN 207540911 U CN207540911 U CN 207540911U CN 201721772123 U CN201721772123 U CN 201721772123U CN 207540911 U CN207540911 U CN 207540911U
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- CN
- China
- Prior art keywords
- briquetting
- raw bamboo
- telescopic rod
- grain direction
- test device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of raw bamboo rift grain direction shear test devices, including forcing press, upper cover plate, lower cover, several first briquettings and several second briquettings, each first briquetting is fixed on the bottom of upper cover plate, each second briquetting is fixed on the upper surface of lower cover, each first briquetting is in contact with the upper surface of raw bamboo, each second briquetting is in contact with the lower face of raw bamboo, the output shaft of forcing press is in contact with the upper surface of upper cover plate, each first briquetting is in staggered distribution with each second briquetting, which can measure the shear behavior in raw bamboo rift grain direction.
Description
Technical field
The utility model belongs to culm property detection field, is related to a kind of raw bamboo rift grain direction shear test device.
Background technology
Under the energy-saving and environment-friendly main trend in the whole world, breeding is easy, growth is fast, becomes a useful person morning and yield height etc. due to having for bamboo
Feature has been widely used in building structure, especially in some more earthquake areas or the area that goes sightseeing, however currently without
Experimental rig can study the shear behavior in raw bamboo rift grain direction, therefore the serious use for affecting raw bamboo and people are to raw bamboo
Cognition.
Utility model content
The purpose of the utility model is to overcome the shortcomings that the above-mentioned prior art, provide a kind of raw bamboo rift grain direction shearing resistance
Experimental rig, the device can measure the shear behavior in raw bamboo rift grain direction.
In order to achieve the above objectives, shear test device in raw bamboo rift grain direction described in the utility model include forcing press, on
Cover board, lower cover, several first briquettings and several second briquettings, each first briquetting are fixed on the bottom of upper cover plate, each second pressure
Block is fixed on the upper surface of lower cover, and each first briquetting is in contact with the upper surface of raw bamboo, the lower end of each second briquetting and raw bamboo
Face is in contact, and the output shaft of forcing press is in contact with the upper surface of upper cover plate, and each first briquetting is interspersed with each second briquetting.
Each first briquetting and each second briquetting are sector structure, and the first briquetting and the second briquetting circumferentially staggeredly divide
Cloth, and the projection of each first briquetting and each second briquetting in the horizontal plane is interspersed and one circle of composition that is in contact successively.
The outer wall of the inner wall of each first briquetting and each second briquetting is on cylindrical surface, and first briquetting is located at one the
The top of two briquettings.
The first central shaft, several groups of the first telescopic rods are further included, the bottom of upper cover plate is fixed in the upper end of the first central shaft,
One group of first telescopic rod corresponds to first briquetting, and the material of the first briquetting is mild steel steel plate, any one group of the first telescopic rod
In one end of each first telescopic rod be connected with the side of the first central shaft, each first telescopic rod in any one group of the first telescopic rod
The other end correspond to the first briquetting inner wall be connected.
The link position of each first telescopic rod and the first briquetting in any one group of the first telescopic rod is uniformly distributed in first
On the medial surface of briquetting.
First central shaft is fixed on the center position of upper cover plate bottom.
The second central shaft, several groups of the second telescopic rods are further included, the upper table of lower cover is fixed in the upper end of the second central shaft
On face, one group of second telescopic rod corresponds to second briquetting, and the material of the second briquetting is mild steel steel plate, and any one group second is stretched
One end of each second telescopic rod is connected with the side of the second central shaft in contracting bar, and each second stretches in any one group of the second telescopic rod
The inner wall that the other end of contracting bar corresponds to the second briquetting is connected.
The link position of each second telescopic rod and the second briquetting in any one group of the second telescopic rod is uniformly distributed in second
On the medial surface of briquetting.
Second central shaft is fixed on the center position of upper cover plate bottom.
Each first briquetting circumferentially equidistantly distributed, each second briquetting circumferentially equidistantly distributed.
The utility model has the advantages that：
Shear test device in raw bamboo rift grain direction described in the utility model is in concrete operations, by forcing press to upper cover
Plate applies downward pressure, and lower cover applies downward pressure by each first briquetting to the subregion in raw bamboo sidewall upper face
Power, since each first briquetting and each second briquetting are in staggered distribution, when the pressure that forcing press applies upper cover plate reaches certain pressure
During value, the subregion in the raw bamboo sidewall upper face of the first briquetting compression moves down, and destroys raw bamboo, obtains test pressure machine
It is simple in structure to study the shear behavior in raw bamboo rift grain direction to the pressure that upper cover plate applies, it is easy to operate, have more wide
General is application prospect.
Description of the drawings
Fig. 1 is the structure diagram of embodiment one；
Fig. 2 is the structure diagram inside embodiment one；
Fig. 3 is the structure diagram of embodiment two；
Fig. 4 is the structure diagram inside embodiment two.
Wherein, 1 it is upper cover plate, 2 be raw bamboo, 3 be lower cover, 4 be the first briquetting, 5 be the second briquetting, 6 is the first center
Axis, 7 be the first telescopic rod, 8 be the second central shaft, 9 be the second telescopic rod.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
If shear test device in raw bamboo rift grain direction described in the utility model include forcing press, upper cover plate 1, lower cover 3,
Dry first briquetting 4 and several second briquettings 5, each first briquetting 4 is fixed on the bottom of upper cover plate 1, under each second briquetting 5 is fixed on
The upper surface of cover board 3, each first briquetting 4 are in contact with the upper surface of raw bamboo 2, and each second briquetting 5 connects with the lower face of raw bamboo 2
It touches, the output shaft of forcing press is in contact with the upper surface of upper cover plate 1, and each first briquetting 4 is interspersed with each second briquetting 5.
Embodiment one
Each first briquetting 4 and each second briquetting 5 are sector structure, and the first briquetting 4 circumferentially interlocks with the second briquetting 5
Distribution, and the projection of each first briquetting 4 and each second briquetting 5 in the horizontal plane is interspersed and one circle of composition that is in contact successively
Shape, the first briquetting 4 compress the upper surface of raw bamboo 2, the side of raw bamboo are made to be staggered under the action of the first briquetting 4 and the second briquetting 5
It disconnects, wherein the direction disconnected is radial direction, to study the shear behavior of raw bamboo side wall axial direction.
Embodiment two
The outer wall of the inner wall of each first briquetting 4 and each second briquetting 5 is on cylindrical surface, and first briquetting 4 is located at one
The top of a second briquetting 5, each first briquetting 4 circumferentially equidistantly distributed, each second briquetting 5 circumferentially equidistantly distributed are led to
Excess pressure machine compresses the first briquetting 4, the side wall of raw bamboo is made to be divided into both sides after disconnecting, to study the shear resistance of raw bamboo side wall axial direction
Energy.
The utility model further includes the first central shaft 6, several groups of the first telescopic rods 7, and the upper end of the first central shaft 6 is fixed on
The bottom of upper cover plate 1, one group of first telescopic rod 7 corresponds to first briquetting 4, and the material of the first briquetting 4 is mild steel steel plate, is appointed
One end of each first telescopic rod 7 in one group of first telescopic rod 7 of anticipating is connected with the side of the first central shaft 6, any one group first
The inner wall of the other end the first briquetting 4 of correspondence of each first telescopic rod 7 is connected in telescopic rod 7, wherein, any one group first is flexible
The link position of 7 and first briquetting 4 of each first telescopic rod in bar 7 is uniformly distributed on the medial surface of the first briquetting 4；In first
Mandrel 6 is fixed on the center position of 1 bottom of upper cover plate.
The utility model further includes the second central shaft 8, several groups of the second telescopic rods 9, and the upper end of the second central shaft 8 is fixed on
On the upper surface of lower cover 3, one group of second telescopic rod 9 corresponds to second briquetting 5, and the material of the second briquetting 5 is mild steel steel
Plate, one end of each second telescopic rod 9 is connected with the side of the second central shaft 8 in any one group of the second telescopic rod 9, any one group
The inner wall of the other end the second briquetting 5 of correspondence of each second telescopic rod 9 is connected in second telescopic rod 9；Any one group second flexible
The link position of 9 and second briquetting 5 of each second telescopic rod in bar 9 is uniformly distributed on the medial surface of the second briquetting 5；In second
Mandrel 8 is fixed on the center position of 1 bottom of upper cover plate.
Wherein, the first briquetting 4 and the second briquetting 5 are arc structure, by adjusting the collapsing length of the first telescopic rod 7,
It is changed the shape of the first briquetting 4, to adapt to the raw bamboo of different-diameter and sidewall thickness；By adjusting the second telescopic rod 9
Length, with adjust the second briquetting 4 arc radius, to adapt to the circular arc of different-diameter and sidewall thickness.
Claims (10)
1. a kind of raw bamboo rift grain direction shear test device, which is characterized in that including forcing press, upper cover plate (1), lower cover (3),
Several first briquettings (4) and several second briquettings (5), each first briquetting (4) are fixed on the bottom of upper cover plate (1), each second pressure
Block (5) is fixed on the upper surface of lower cover (3), and each first briquetting (4) is in contact with the upper surface of raw bamboo (2), each second briquetting
(5) lower face with raw bamboo (2) is in contact, and the output shaft of forcing press is in contact with the upper surface of upper cover plate (1), each first briquetting
(4) it is interspersed with each second briquetting (5).
2. shear test device in raw bamboo rift grain direction according to claim 1, which is characterized in that each first briquetting (4) and
Each second briquetting (5) is sector structure, and the first briquetting (4) is circumferentially interspersed with the second briquetting (5), and each first pressure
The projection of block (4) and each second briquetting (5) in the horizontal plane is interspersed and one circle of composition that is in contact successively.
3. shear test device in raw bamboo rift grain direction according to claim 1, which is characterized in that each first briquetting (4)
Inner wall and the outer wall of each second briquetting (5) are on same cylindrical surface, and first briquetting (4) is positioned at second briquetting (5)
Top.
4. shear test device in raw bamboo rift grain direction according to claim 3, which is characterized in that further include the first central shaft
(6), the bottom of upper cover plate (1) is fixed in several groups of the first telescopic rods (7), the upper end of the first central shaft (6), and one group first flexible
Bar (7) correspond to first briquetting (4), and the material of the first briquetting (4) be mild steel steel plate, any one group of the first telescopic rod (7)
In one end of each first telescopic rod (7) be connected with the side of the first central shaft (6), it is each in any one group of the first telescopic rod (7)
The other end of first telescopic rod (7) is connected with the inner wall of corresponding first briquetting (4).
5. shear test device in raw bamboo rift grain direction according to claim 4, which is characterized in that any one group first flexible
The link position of each first telescopic rod (7) and the first briquetting (4) in bar (7) is uniformly distributed in the medial surface of the first briquetting (4)
On.
6. shear test device in raw bamboo rift grain direction according to claim 4, which is characterized in that the first central shaft (6) is solid
Due to the center position of upper cover plate (1) bottom.
7. shear test device in raw bamboo rift grain direction according to claim 3, which is characterized in that further include the second central shaft
(8), several groups of the second telescopic rods (9), the upper end of the second central shaft (8) are fixed on the upper surface of lower cover (3), one group second
Telescopic rod (9) correspond to second briquetting (5), and the material of the second briquetting (5) be mild steel steel plate, any one group of the second telescopic rod
(9) one end of each second telescopic rod (9) is connected with the side of the second central shaft (8) in, in any one group of the second telescopic rod (9)
The other end of each second telescopic rod (9) is connected with the inner wall of corresponding second briquetting (5).
8. shear test device in raw bamboo rift grain direction according to claim 7, which is characterized in that any one group second flexible
The link position of each second telescopic rod (9) and the second briquetting (5) in bar (9) is uniformly distributed in the medial surface of the second briquetting (5)
On.
9. shear test device in raw bamboo rift grain direction according to claim 8, which is characterized in that the second central shaft (8) is solid
Due to the center position of upper cover plate (1) bottom.
10. shear test device in raw bamboo rift grain direction according to claim 3, which is characterized in that each first briquetting (4) edge
Circumferential equidistantly distributed, each second briquetting (5) circumferentially equidistantly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721772123.2U CN207540911U (en) | 2017-12-18 | 2017-12-18 | A kind of raw bamboo rift grain direction shear test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721772123.2U CN207540911U (en) | 2017-12-18 | 2017-12-18 | A kind of raw bamboo rift grain direction shear test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540911U true CN207540911U (en) | 2018-06-26 |
Family
ID=62618895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721772123.2U Expired - Fee Related CN207540911U (en) | 2017-12-18 | 2017-12-18 | A kind of raw bamboo rift grain direction shear test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207540911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941632B (en) * | 2017-12-18 | 2024-04-12 | 西安建筑科技大学 | Raw bamboo grain-oriented shear test device |
-
2017
- 2017-12-18 CN CN201721772123.2U patent/CN207540911U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941632B (en) * | 2017-12-18 | 2024-04-12 | 西安建筑科技大学 | Raw bamboo grain-oriented shear test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20201218 |